CN106012853A - Walking type jacking and pushing construction method - Google Patents

Walking type jacking and pushing construction method Download PDF

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Publication number
CN106012853A
CN106012853A CN201610429181.9A CN201610429181A CN106012853A CN 106012853 A CN106012853 A CN 106012853A CN 201610429181 A CN201610429181 A CN 201610429181A CN 106012853 A CN106012853 A CN 106012853A
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CN
China
Prior art keywords
jack
pushing tow
value
jacking
displacement
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Pending
Application number
CN201610429181.9A
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Chinese (zh)
Inventor
肖云
罗意钟
唐祖文
曾世荣
吴松霖
唐亚奇
李建兰
冯达康
玉进勇
陈凌冰
黄正龙
封飚
梅军权
刘正品
韦雪英
谭克乐
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LIUZHOU QIAN BRIDGE ENGINEERING MATERIALS Co Ltd
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LIUZHOU QIAN BRIDGE ENGINEERING MATERIALS Co Ltd
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Application filed by LIUZHOU QIAN BRIDGE ENGINEERING MATERIALS Co Ltd filed Critical LIUZHOU QIAN BRIDGE ENGINEERING MATERIALS Co Ltd
Priority to CN201610429181.9A priority Critical patent/CN106012853A/en
Publication of CN106012853A publication Critical patent/CN106012853A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges

Abstract

Provided is a walking type jacking and pushing construction method. A horizontal jacking and pushing displacement standard value, a jacking displacement standard value and a component deviation direction standard value are set in a master control center; horizontal jacking and pushing values and jacking values of each jacking and pushing unit platform and component deviation direction values are measured in real time, and real-time measured parameters are compared with the set parameters through the master control center; and after jacks jack a main beam away from a beam holding support, the horizontal jacking and pushing values, the jacking values and the component deviation direction values which are all measured in real time are compared with the set values and adjusted to be consistent with the set values. The walking type jacking and pushing construction method has the advantages that a master control system is used for conducting three-dimensional control over multiple jacking and pushing units so as to achieve continuous and synchronous work, the control precision is high, the labor intensity is relieved, and the labor cost is reduced; the structure is compact and simple, disassembling and assembling are easy, the cost is low, and the working space is small; after one-time installation, equipment can be used until completion, and the defect that equipment cannot retreat but advance in conventional traction modes is overcome; and a dynamic deviation correction function is achieved, and deviation can be corrected in time in the advancing process.

Description

Stride push construction method
Technical field
The present invention relates to engineering construction machinery technical field, particularly to a kind of for large-scale component integral translation Stride push construction method.
Background technology
Successively incremeantal launching method technology is applied in the translation construction of large-scale component the most more and more widely.Structure for large span In bridge steel box girder incremental launching construction, existing construction method typically uses successively incremeantal launching method or the way dragged, and needs steel case Beam or beams of concrete external tendon carry out temperature pier, form bridge and release;The form of employing steel strand wires traction, every pushing tow one section, Steel strand wires need to be reinstalled.The method working procedure is loaded down with trivial details, and cost is high, and can only advance and can not retreat, and repeatedly starts simultaneously Horizontal thrust or pulling force are unfavorable to the force status of flexible pier.Authorization Notice No. is the disclosure of the invention one of CN 201678949 U Plant walking type pushing device, including sliding case, slideway, translation jack, jack and correction jack assembly;Sliding case is by sliding Box main body unit and the sliding box main body connector composition connecting sliding box main body unit, between sliding box main body unit, slide box main body list It is flexibly connected by bolt between unit and sliding box main body connector and between each sliding box main body connector;Slideway is by slideway main body Unit, slideway main body connector form, between slideway main unit, between slideway main unit and slideway main body connector, respectively It is flexibly connected by bolt between slideway main body connector;Sliding case is integrally placed on slideway, in up-down structure, and jack In the jack mounting cylinder being mounted on slideway, translate the translation jack peace that jack is mounted on slideway On dress plate, on the correction jack installing rack that correction jack assembly is mounted on slideway, this device is very heavy by translation Top, the alternation of jack realize walking pushing tow, it is not necessary to steel box-girder or beams of concrete external tendon are faced Shi Jiagu, is also not required to use steel strand wires.But it has following defects that 1, the structure of slideway, sliding case is complicated and volume is big, weight Weight, difficulty of processing is big, and cost is high, and required work space is big.2, each pushing tow unit needs 4 jacks and 4 pushing tows thousand Jin top, not only equipment cost is high, and required work and accommodation space are big, it is impossible to realizing I-beam and bolt splicing construction Component pushing tow.
Summary of the invention
It is an object of the invention to provide a kind of system simple in construction, work space is little, low cost, and easy construction, speed are fast Stride push construction method.
The solution of the present invention is such that
A kind of stride push construction method, including step:
(1), pushing tow system setting steps: include the sons such as overall control center, power set, lowering or hoisting gear, thrustor, deviation correcting device System, each subsystem is by high-pressure oil pipe, data transmission cable and controls element, and described overall control center is responsible for whole system work Commander and control, be provided with electric cabinet, computer (or touch screen), PLC control unit, converter, analog acquisition module, pressure Force transducer, displacement transducer, pressure switch;Power set include n platform hydraulic power unit, and hydraulic power unit includes fuel tank, frequency conversion Motor, the unit radial plunger displacement pump of many mouthfuls of multiple pressure outputs and control valve group, control valve group includes and unit radial plungers pump plunger The solenoid directional control valve that matches, overflow valve;Lowering or hoisting gear includes m platform jack, is arranged on jack piston Bulb flat, the fishback being arranged on bulb flat and backing plate, the displacement transducer being arranged on jack oil cylinder;Pushing tow fills Put the displacement biography including m platform level jack, being arranged on the sliding case bottom level jack, be arranged on level jack oil cylinder Sensor;Every suit lowering or hoisting gear and a set of thrustor one pushing tow unit of composition;One pumping plant can control multiple pushing tow unit (depending on the unit plunger displacement pump quantity of pumping station layout);Described deviation correcting device is responsible for when component produces deviation during pushing tow Work for correction, it includes m platform correction jack, the roller being arranged on very heavy piston tip of rectifying a deviation, is arranged on correction jack Displacement transducer on oil cylinder;
(2), pushing tow parameter setting step: arrange at Master Control Center: horizontal pushing tow shift standards value, jacking shift standards value, structure The offset direction standard value of part, jack piston displacement difference standard value, horizontal pushing tow jack piston displacement difference standard value;
(3), pushing tow state modulator strategy: measure in real time the horizontal pushing tow value of each pushing tow unit platforms, jacking value, component Offset direction value, is compared the parameter measured in real time by the parameter of Master Control Center with setting, when:
During jacking, when the difference of the piston displacement value of wantonly two jacks is more than jack piston displacement difference standard value Time, Master Control Center sends instruction, the electromagnetic switch valve events of the jack that command displacement value is big, stops this jack fuel feeding, This jack quits work and waits, and the little jack of shift value works on, until the difference of shift value is less than jacking thousand Jin top piston displacement difference standard value, the jack of stopping restarts work, so can ensure the same of each jack Step property.The jacking value of any jack i.e. quits work after reaching jacking shift standards value, and is not reaching to jacking displacement Working on of standard value, until whole jack jacking values i.e. complete a stroke after all reaching jacking shift standards value Jacking, and start horizontal pushing tow;
During pushing tow, when the difference of the piston displacement value of wantonly two horizontal pushing tow jack is more than horizontal pushing tow jack piston displacement difference During standard value, Master Control Center sends instruction, the electromagnetic switch valve events of the jack that command displacement value is big, stops this jack Fuel feeding, this jack quits work and waits, and the little jack of shift value works on, until the difference of shift value is less than water Flat-top pushes away jack piston displacement difference standard value, and the horizontal pushing tow jack of stopping restarts work, so can ensure each water Flat-top pushes away the synchronicity of jack;The pushing tow value of any horizontal pushing tow jack i.e. stops work after reaching pushing tow shift standards value Make, and be not reaching to working on of pushing tow shift standards value, until whole horizontal pushing tow jack pushing tow values all reach pushing tow I.e. complete the pushing tow of a stroke after shift standards value, start the beam that falls;
Component moves offset direction value and exceeds offset direction standard value, and Master Control Center sends finger to the deviation correcting device of offset direction Order, rectifies a deviation to the power that component applying offset direction is contrary, and component moves offset direction value and is returned to offset direction standard value Time, Master Control Center sends stopping correction instruction, stops correction operation.
More specifically technical scheme also includes: also included splice plate set-up procedure: this step is to set at lifting jack Being equipped with fishback, fishback top is supported on the bottom of component by backing plate, and wherein fishback top sets along component moving direction Being equipped with groove, the width of this groove is more than the width of member bottom section ridge, when needing splice plate position, removes backing plate, comb The direct bearing carrier of tooth plate, the bolt of splice plate agrees with fishback fillister joint, thus ensures that smooth-going is passed through;Again will pad after by Plate is put back on fishback.
Further: also to include the adjustment of Automatic Levelling and the flexible set-up procedure in direction: this step is very heavy in jacking Top, top connects into the structure that sphere tongue and groove is connected or cambered surface tongue and groove connects with bulb flat so that bulb flat is able to along ball Shape face swings, the adjustment of Automatic Levelling and the flexible adjustment in direction.
The invention have the advantage that
1, realize, with a turn-key system, multiple pushing tow unit are carried out Three dimensions control and realize continuous synchronization work, control accuracy Height, reduces labor intensity, reduces human cost.
2, compact conformation, simple, easy disassembling, low cost, work space is little.
3, component need not be carried out temperature pier, it is not necessary to use steel strand wires, can be until completion after equipment once mounting, nothing Bridge construction expense must can be saved because of steel strand wires length midway disassemblerassembler not.
4, device systems by slide surface by changing between incremental launching device and slide plate bottom box beam, vertical lifting jack simultaneously Ball head device is installed, can automatic centering avoid the damage bottom box beam and jack lateral force, bridge pier during pushing tow simultaneously Not by horizontal loading, girder and bridge pier, all without damage, make structure guarantee safety during pushing tow.
5, there is dynamic correcting function, can rectify a deviation during advancing in time, keep the straight line of component to greatest extent Motion, it is to avoid component runs unstability, thus ensures that the gradient of box beam, full-bridge are linear.
6, conventional tractive manner is overcome can only to advance the shortcoming that can not retreat.
7, extensibility is strong, and versatility is high: actual according to engineering, increases by pumping plant and jack quantity are increased or decreased Add deduct few pushing tow unit, thus meets different spans, the engineering construction needs of different tonnage.
8, run into element joints when pushing tow or other situation still can carry out incremental launching construction.
Accompanying drawing explanation
Fig. 1 is the walking pushing tow system control network figure of the present invention.
Fig. 2 is that the walking pushing tow system of the present invention installs connection figure.
Fig. 3 is pushing tow cell schematics of the present invention
Fig. 4 is the deviation correcting device front view of the present invention
Fig. 5 is the deviation correcting device top view of the present invention
Fig. 6 is the bulb flat structural representation of the present invention
Fig. 7 is the left view of Fig. 6
Fig. 8 is the fishback structural representation of the present invention
Fig. 9 is the B direction view of Fig. 8
Figure 10 is the A direction view of Fig. 8
Figure 11 is the splice plate operating diagram excessively of the present invention
Figure 12 is the present invention multiple pushing tow unit layout drawings when implementing
In figure, reference is:.
In figure, reference is: A. lowering or hoisting gear, B. thrustor, C. deviation correcting device, D. component, and E. deviation correcting device is pacified Assembling platform, F. pushing tow unit mounting platform, G. falls boom support, 1. jack, 2. bulb flat, 3. fishback, 4. pad Plate, 5. displacement transducer a, the most horizontal pushing tow jack, 7. displacement transducer b, 8. slide case, 9. reaction frame, 10. ball pivot device, 11. steel cushion blocks, 12. rollers, 13. roller mounting brackets, 14. displacement transducer c, 15. correction jack, 16. movable steel pads Plate, 17. correction reaction frames, 18. jack pistons, 19. bolts, 20. level jack pistons, 21. splice plates, 22. spell Fishplate bar bolt, 23. grooves.
Detailed description of the invention
The present invention includes step:
(1), pushing tow system setting steps: include the sons such as overall control center, power set, lowering or hoisting gear, thrustor, deviation correcting device System, each subsystem is by high-pressure oil pipe, data transmission cable and controls element, and described overall control center is responsible for whole system work Commander and control, be provided with electric cabinet, computer (or touch screen), PLC control unit, converter, analog acquisition module, pressure Force transducer, displacement transducer, pressure switch;Power set include n platform hydraulic power unit, and hydraulic power unit includes fuel tank, frequency conversion Motor, the unit radial plunger displacement pump of many mouthfuls of multiple pressure outputs and control valve group, control valve group includes and unit radial plungers pump plunger The solenoid directional control valve that matches, overflow valve;Lowering or hoisting gear includes m platform jack, is arranged on jack piston Bulb flat, the fishback being arranged on bulb flat and backing plate, the displacement transducer being arranged on jack oil cylinder;Pushing tow fills Put the displacement biography including m platform level jack, being arranged on the sliding case bottom level jack, be arranged on level jack oil cylinder Sensor etc..Every suit lowering or hoisting gear and a set of thrustor one pushing tow unit of composition;One pumping plant can control multiple pushing tow list Unit's (depending on unit plunger displacement pump quantity of pumping station layout).Described deviation correcting device is responsible for producing deviation during pushing tow when component Time work for correction, it include m platform correction jack, the roller being arranged on very heavy piston tip of rectifying a deviation, be arranged on correction very heavy Displacement transducer on the oil cylinder of top;
(2), pushing tow parameter setting step: arrange at Master Control Center: horizontal pushing tow shift standards value, jacking shift standards value, structure The offset direction standard value of part, jack piston displacement difference standard value, horizontal pushing tow jack piston displacement difference standard value;
(3), pushing tow state modulator strategy: measure in real time the horizontal pushing tow value of each pushing tow unit platforms, jacking value, component Offset direction value, is compared the parameter measured in real time by the parameter of Master Control Center with setting, when:
During jacking, when the difference of the piston displacement value of wantonly two jacks is more than jack piston displacement difference standard value Time, Master Control Center sends instruction, the electromagnetic switch valve events of the jack that command displacement value is big, stops this jack fuel feeding, This jack quits work and waits, and the little jack of shift value works on, until the difference of shift value is less than jacking thousand Jin top piston displacement difference standard value, the jack of stopping restarts work, so can ensure the same of each jack Step property.The jacking value of any jack i.e. quits work after reaching jacking shift standards value, and is not reaching to jacking displacement Working on of standard value, until whole jack jacking values i.e. complete a stroke after all reaching jacking shift standards value Jacking, and start horizontal pushing tow;
During pushing tow, when the difference of the piston displacement value of wantonly two horizontal pushing tow jack is more than horizontal pushing tow jack piston displacement difference During standard value, Master Control Center sends instruction, the electromagnetic switch valve events of the jack that command displacement value is big, stops this jack Fuel feeding, this jack quits work and waits, and the little jack of shift value works on, until the difference of shift value is less than water Flat-top pushes away jack piston displacement difference standard value, and the horizontal pushing tow jack of stopping restarts work, so can ensure each water Flat-top pushes away the synchronicity of jack.The pushing tow value of any horizontal pushing tow jack i.e. stops work after reaching pushing tow shift standards value Make, and be not reaching to working on of pushing tow shift standards value, until whole horizontal pushing tow jack pushing tow values all reach pushing tow I.e. complete the pushing tow of a stroke after shift standards value, start the beam that falls;
Component moves offset direction value and exceeds offset direction standard value, and Master Control Center sends finger to the deviation correcting device of offset direction Order, rectifies a deviation to the power that component applying offset direction is contrary, and component moves offset direction value and is returned to offset direction standard value Time, Master Control Center sends stopping correction instruction, stops correction operation.
Cross splice plate set-up procedure: this step is that lifting jack is provided with fishback, and backing plate is passed through at fishback top Being supported on the bottom of component, wherein fishback top is provided with groove along component moving direction, and the width of this groove is more than component The width of bottom ridge, when needing splice plate position, removes backing plate, the direct bearing carrier of fishback, the bolt of splice plate Agree with fishback fillister joint, thus ensure that smooth-going is passed through.Again backing plate is put back on fishback after by.
The adjustment of Automatic Levelling and the flexible set-up procedure in direction: this step is on jack top with bulb flat even It is connected into the structure that sphere tongue and groove connects or cambered surface tongue and groove connects so that bulb flat is able to swing along spherical, automatically looks for Flat adjustment and the flexible adjustment in direction.
Below by an example, the present invention is described in detail:
The present embodiment is provided with overall control center, n hydraulic power unit, n × m pushing tow unit;Described pushing tow unit as in figure 2 it is shown, It is provided with lowering or hoisting gear A, thrustor B, deviation correcting device C.N × m pushing tow unit is be symmetrically distributed in component axis two Side, as shown in Figure 9.
Described lowering or hoisting gear A is provided with jack 1, bulb flat 2, fishback 3, backing plate 4, displacement transducer 5;Jacking Jack 1 top and bulb flat 2 connect into sphere tongue and groove attachment structure, piston 18 top of wherein said jack 1 For concave spherical surface, as shown in Figure 6,7, its bottom is convex spherical to described bulb flat 2, matches with piston 18 concave spherical surface, described bulb flat 2 Centering is kept by being located at the bolt 19 in the center of circle so that bulb flat 2 is able to put along spherical with described jack piston 18 Dynamic, carry out the adjustment of Automatic Levelling and the flexible adjustment in direction;Described fishback 3 as shown in Fig. 7,8,9, described bulb flat 2 with Fishback 3 uses tongue and groove attachment structure, carries out spacing from front, rear, left and right four direction to fishback 3, wherein fishback 3 Being placed in above bulb flat 2, bottom sets a convex surface, mutually embedding with the groove being located at bulb flat top, and fishback 3 top is moved along component Direction is provided with two grooves, and the width of every groove is more than the width of member bottom section ridge;Described backing plate 4 is positioned over comb On plate 3, when normal pushing tow, the direct bearing carrier of backing plate 4;When pushing tow run into element joints or other in the case of need to avoid During the ridges such as connecting bolt, taking off backing plate 4, the direct bearing carrier of fishback 3, the ridge such as connecting bolt can be from fishback The groove of end face passes through.
Described thrustor B is provided with horizontal pushing tow jack 6, displacement transducer 7, sliding case 8, the counter-force that is located on sliding case Frame 9, the ball pivot device 10 being located between reaction frame and horizontal pushing tow jack.
Between the piston 20 and jack oil cylinder of level jack, a steel cushion block 11 is set, by bolt even during construction Connect and make level jack 6 and jack 1 form an entirety, detachable after having constructed, convenient shipment.
Described deviation correcting device C as shown in Figure 3,4, be provided with correction jack 15, correction reaction frame 17, be located at correction very heavy Movable steel backing plate 16 between top 15 and correction reaction frame 17, described correction jack 15 front end is provided with roller 12 and roller is installed Support 13, oil cylinder is provided with displacement transducer 14.
The basic skills of the said system employing present invention is:
Utilize above-mentioned walking type pushing device, the method that component integral pushing is put in place, it comprises the following steps:
1, pushing tow system is installed: walking pushing tow system be assembled on the thrustor mounting platform of bridge pier;
2, walking pushing tow program is set: according to construction process and requirement, set relevant parameter at overall control center, set and opened Dynamic equipment;
3, jacking girder: jack stretches cylinder, is lifted off boom support by girder, is automatically stopped, now leads when reaching setting stroke Load beam is transferred to jack by the boom support that falls;
4, pushing tow girder: horizontal pushing tow jack starts and stretch cylinder automatically, promote jack together with girder in sliding case to Front sliding, is automatically stopped to when setting stroke;
5, Luo Liang: jack contracting cylinder automatically, girder drops on boom support again, and now girder load is very heavy by jacking Top transfer falls boom support after rise;
6, horizontal pushing tow jack backhaul: horizontal pushing tow jack contracting cylinder automatically, drives jack to return to initial position.
7, correction: as occurred deviation during horizontal pushing tow and reaching setting value, jack of rectifying a deviation starts automatically, stretches Cylinder, applies the power contrary with girder offset direction by pair of rollers girder and rectifies a deviation.
8, cross splice plate: when pushing tow run into element joints or other in the case of need to avoid the ridges such as connecting bolt time, Take off backing plate, the direct bearing carrier of fishback, by after again backing plate is put back on fishback.
Repeat 1-8 step, iterative cycles, until the translation of girder pushing tow is in place.
The present invention is i.e. applicable to the horizontal incremental launching construction of large-scale component (containing steel construction, concrete etc.).
During construction, after inputting construction parameter by the touch screen of Master Control Center, starting device, equipment is the most automatically by following step Rapid work:
1, jacking girder: jack 1 stretches cylinder, is lifted off boom support G by girder D, is simultaneously attached to jack 1 oil Displacement transducer 5 on cylinder is measured shift value in real time and sends data to overall control center, and jacking process bulb flat 2 can be adjusted automatically Whole levelling.When jacking reaches to set stroke, overall control center sends instruction, and jack 1 stops, and now girder load is by falling Jack 1 transferred to by boom support;
2, pushing tow girder: overall control center sends instruction, horizontal pushing tow jack 6 is automatically stretched cylinder, is promoted jack 1 together with ball Shape plate 2, fishback 3, backing plate 4 and girder D, along slide plate 8 sliding forward, are simultaneously attached on horizontal pushing tow jack 6 oil cylinder Displacement transducer 7 is measured shift value in real time and sends data to overall control center, and when reaching to set stroke, overall control center sends Instruction, horizontal pushing tow jack 6 stops stretching cylinder;
3, Luo Liang: jack 1 contracting cylinder automatically, girder drops on boom support G again, and now girder load is by jacking Jack 1 transfer falls boom support G after rise;
4, horizontal pushing tow jack backhaul: horizontal pushing tow jack 6 contracting cylinder automatically, drive jack 1 together with bulb flat 2, Fishback 3, backing plate 4 return to initial position.
5, correction: as occurred deviation during horizontal pushing tow and reaching setting value, jack 15 of rectifying a deviation starts automatically, stretches Cylinder, applies the power contrary with girder offset direction by roller 12 to girder D and rectifies a deviation, be simultaneously attached to correction jack Displacement transducer 14 on 15 oil cylinders is measured shift value in real time and sends data to overall control center, when reaching correction stroke, Overall control center sends instruction, and correction jack 15 stops.
6, cross splice plate: when pushing tow run into splice plate 21 or other in the case of need to avoid the ridges such as connecting bolt time, take Lower bolster 4, the direct bearing carrier of fishback 3, as shown in figure 11, the bolt 22 of splice plate agrees with the groove 23 of fishback, from And ensure that smooth-going is passed through.Again backing plate is put back on fishback after by.
Constantly repeat the above steps, the walking pushing tow that can realize component puts in place.

Claims (3)

1. a stride push construction method, it is characterised in that: include step:
(1), pushing tow system setting steps: include the sons such as overall control center, power set, lowering or hoisting gear, thrustor, deviation correcting device System, each subsystem is by high-pressure oil pipe, data transmission cable and controls element, and described overall control center is responsible for whole system work Commander and control, be provided with electric cabinet, computer (or touch screen), PLC control unit, converter, analog acquisition module, pressure Force transducer, displacement transducer, pressure switch;Power set include n platform hydraulic power unit, and hydraulic power unit includes fuel tank, frequency conversion Motor, the unit radial plunger displacement pump of many mouthfuls of multiple pressure outputs and control valve group, control valve group includes and unit radial plungers pump plunger The solenoid directional control valve that matches, overflow valve;Lowering or hoisting gear includes m platform jack, is arranged on jack piston Bulb flat, the fishback being arranged on bulb flat and backing plate, the displacement transducer being arranged on jack oil cylinder;Pushing tow fills Put the displacement biography including m platform level jack, being arranged on the sliding case bottom level jack, be arranged on level jack oil cylinder Sensor;Every suit lowering or hoisting gear and a set of thrustor one pushing tow unit of composition;One pumping plant can control multiple pushing tow unit (depending on the unit plunger displacement pump quantity of pumping station layout);Described deviation correcting device is responsible for when component produces deviation during pushing tow Work for correction, it includes m platform correction jack, the roller being arranged on very heavy piston tip of rectifying a deviation, is arranged on correction jack Displacement transducer on oil cylinder;
(2), pushing tow parameter setting step: arrange at Master Control Center: horizontal pushing tow shift standards value, jacking shift standards value, structure The offset direction standard value of part, jack piston displacement difference standard value, horizontal pushing tow jack piston displacement difference standard value;
(3), pushing tow state modulator strategy: measure in real time the horizontal pushing tow value of each pushing tow unit platforms, jacking value, component Offset direction value, is compared the parameter measured in real time by the parameter of Master Control Center with setting, when:
During jacking, when the difference of the piston displacement value of wantonly two jacks is more than jack piston displacement difference standard value Time, Master Control Center sends instruction, the electromagnetic switch valve events of the jack that command displacement value is big, stops this jack fuel feeding, This jack quits work and waits, and the little jack of shift value works on, until the difference of shift value is less than jacking thousand Jin top piston displacement difference standard value, the jack of stopping restarts work, so can ensure the same of each jack Step property;The jacking value of any jack i.e. quits work after reaching jacking shift standards value, and is not reaching to jacking displacement Working on of standard value, until whole jack jacking values i.e. complete a stroke after all reaching jacking shift standards value Jacking, and start horizontal pushing tow;
During pushing tow, when the difference of the piston displacement value of wantonly two horizontal pushing tow jack is more than horizontal pushing tow jack piston displacement difference During standard value, Master Control Center sends instruction, the electromagnetic switch valve events of the jack that command displacement value is big, stops this jack Fuel feeding, this jack quits work and waits, and the little jack of shift value works on, until the difference of shift value is less than water Flat-top pushes away jack piston displacement difference standard value, and the horizontal pushing tow jack of stopping restarts work, so can ensure each water Flat-top pushes away the synchronicity of jack;The pushing tow value of any horizontal pushing tow jack i.e. stops work after reaching pushing tow shift standards value Make, and be not reaching to working on of pushing tow shift standards value, until whole horizontal pushing tow jack pushing tow values all reach pushing tow I.e. complete the pushing tow of a stroke after shift standards value, start the beam that falls;
Component moves offset direction value and exceeds offset direction standard value, and Master Control Center sends finger to the deviation correcting device of offset direction Order, rectifies a deviation to the power that component applying offset direction is contrary, and component moves offset direction value and is returned to offset direction standard value Time, Master Control Center sends stopping correction instruction, stops correction operation.
Stride push construction method the most according to claim 1, it is characterised in that: also included splice plate set-up procedure: This step is that lifting jack is provided with fishback, and fishback top is supported on the bottom of component, wherein comb by backing plate Plate top is provided with groove along component moving direction, and the width of this groove is more than the width of member bottom section ridge, when crossing spelling During fishplate bar position, removing backing plate, the direct bearing carrier of fishback, the bolt of splice plate agrees with fishback fillister joint, thus protects Card smooth-going is passed through;Again backing plate is put back on fishback after by.
Stride push construction method the most according to claim 1, it is characterised in that: also include adjustment and the side of Automatic Levelling To flexible set-up procedure: this step is to connect into sphere tongue and groove to be connected or cambered surface on jack top with bulb flat The structure that tongue and groove connects so that bulb flat is able to swing along spherical, the adjustment of Automatic Levelling and the flexible adjustment in direction.
CN201610429181.9A 2016-06-17 2016-06-17 Walking type jacking and pushing construction method Pending CN106012853A (en)

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CN106351134A (en) * 2016-11-02 2017-01-25 湖南联智桥隧技术有限公司 Synchronous jacking system and method for underneath passing existing line box culvert
CN106638322A (en) * 2016-12-28 2017-05-10 海波重型工程科技股份有限公司 Steel box beam pushing and deviation correcting method for walking type multiple-point continuous pushing technique

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